diff --git a/libs/ardour/ardour/export_handler.h b/libs/ardour/ardour/export_handler.h
index 352451c4a3..d9d268af01 100644
--- a/libs/ardour/ardour/export_handler.h
+++ b/libs/ardour/ardour/export_handler.h
@@ -124,6 +124,8 @@ class LIBARDOUR_API ExportHandler : public ExportElementFactory, public sigc::tr
 	bool soundcloud_open_page;
 	bool soundcloud_downloadable;
 
+	void reset ();
+
   private:
 
 	void handle_duplicate_format_extensions();
diff --git a/libs/ardour/export_handler.cc b/libs/ardour/export_handler.cc
index df74bda065..3cad72c8d9 100644
--- a/libs/ardour/export_handler.cc
+++ b/libs/ardour/export_handler.cc
@@ -465,6 +465,13 @@ ExportHandler::finish_timespan ()
 	start_timespan ();
 }
 
+void
+ExportHandler::reset ()
+{
+	config_map.clear ();
+	graph_builder->reset ();
+}
+
 /*** CD Marker stuff ***/
 
 struct LocationSortByStart {